Home / 87,984.78-121,418.26-47,697.51

Finding the Fourth Proportional to 87,984.78, 121,418.26 and 47,697.51

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Solution

The fourth proportional to 87,984.78, 121,418.26 and 47,697.51 is: 65,822.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,984.78 : 121,418.26 = 47,697.51 : x
  2. Step 2: Convert to fraction form
    87,984.78/121,418.26 = 47,697.51/x
  3. Step 3: Cross multiply
    87,984.78x = 121,418.26 × 47,697.51
  4. Step 4: Simplify right side
    87,984.78x = 5,791,348,323.63
  5. Step 5: Solve for x
    x = 5,791,348,323.63/87,984.78
  6. Step 6: Final answer
    x = 65,822.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.